baber/WOPTO huggingface dataset:
Patent EP-0169717-A3 (EP)
Title: Rolling cutters for drill bits, and processes to produce same
IPC: E21B10/52
Filed: 1985-07-19
Abstract: A roller bit cutter comprises:a) a tough, metallic, generally conical and fracture resistant core having a hollow interior, the core defining an axis,b) an annular, metallic, radial bearing layer carried by said core at the interior thereof to support the core for rotation, said bearing layer extending about said axis,c) a wear resistant outer metallic layer on the exterior of the core,d) metallic teeth integral with the core and protruding outwardly therefrom, at least some of said teeth spaced about said axis,e) and an impact and wear resistant layer on each tooth to provide hard cutting edges as the bit cutter is rotated about said axis.
Patent EP-0173477-A3 (EP)
IPC: B60R22/20
Filed: 1985-08-02
Abstract: An adjustable shoulder anchorage assembly for a vehicle 
safety belt, comprises a vertically extending track (10) mounted on 
the interior of a vehicle body above the level of the shoulders of 
an occupant of an adjacent seat, and a traveller (22) mounted on the 
track (10).  A guide member (24) is secured to the traveller (22) 
and has a slot for receiving the strap of a safety belt.  A latch 
member (28) is movable transversely of the track (10) between an 
engaged position in which a latching formation thereon is in 
engagement with one of a series of complementary formations (12) on 
the track (10) so as to inhibit movement of the traveller (22) along 
the track (10) and a release position in which the latching 
formation is disengaged from the track (10).  A cam follower (34), 
on manual release means (38), is operative to engage in a slot (36) 
on the latch member (28) so as to move the latch member (28) between 
its engaged and its release positions in response to movement of the 
manual release means (38), and resilient means (42) are operative to 
bias the first cam formation (34) into a position in which the latch 
member (28) is in its engaged position.  The part of slot (36) in 
which the cam follower (34) engages when the latch member (28) is in 
its engaged position is oriented perpendicular to the direction of 
movement of the latch member (28) between its engaged position and 
its release position.  Thus, application of a force to the latch 
member (28) in a direction tending to move it towards its release 
position does not cause the movement of the cam follower (34) 
necessary to permit such movement of the latch member (28).
Patent EP-0181071-A3 (EP)
IPC: C07D233/54
Filed: 1985-09-16
Abstract: Compounds of the formula   
 
R₆--NH--A-CH₂---R₄   
 
wherein A is -- or-- intervene in the conversion of 
angiotensinogen to angiotensin II by inhibiting renin and 
thus are useful as anti-hypertensive agents.
Patent EP-0182750-A3 (EP)
Title: Prepreg fibre material coated with synthetic material and process for preparing such a precursor material
IPC: C08J3/24
Filed: 1985-11-18
Abstract: Prepreg of resin-coated fibres (F). The resin coating (C) comprises a more or less crosslinked (cured) core (1) and an uncrosslinked outer layer (2). This structure avoids undesirable squeeze-outs and fibre agglomerations when processing the prepreg. <IMAGE>
Patent EP-0181294-A3 (EP)
Title: Inter-carriage communication passage for rail or tramway vehicles
IPC: B62D47/02
Filed: 1985-02-27
Abstract: An intercommunication passage between the bodies (C1, C2) of two carriages of a rail or tramway vehicle has respective articulation ends (E1, E2) articulated to a single bogie (B). The passage includes two end plates (12, 14) resting in a swivellable manner on the articulation ends (E1, E2) of the bodies and articulated to the structure (L) of the bogie (B) and a central plate (15) formed by two independent triangular half-plates (15a, 15b) hinged to the two end plates (12, 14).
Patent EP-0184574-A3 (EP)
IPC: B65D47/06
Filed: 1985-12-04
Abstract: Liquid flow out of a container is regulated by a device 
comprising a tube within the container open at both ends 
and having apertures in its side wall for the passage of air 
from inside the tube to the interior of the container. The 
device reduces "gulping" or "gobbling", liquid and replace­
ment air flowing smoothly in opposite directions through the 
tube.
Patent EP-0193106-A3 (EP)
IPC: H04B10/00
Filed: 1986-02-19
Abstract: Es wird ein bidirektionaler optischer Multiplexer und 
Demultiplexer, Bomudex genannt, beschrieben. Er ist als 
passive Vorfeldeinrichtung in einem bidirektionalen 
Teilnehmeranschlußsystem verwendbar. Das auf einem 
ersten Lichtwellenleiter 1 übertragene bidirektionale 
Wellenlängenmultiplex-Signal wird je nach Übertragungsrichtung 
durch wellenlängenselektive Mittel in einzelne 
Signale aufgeteilt und aus einzelnen Signalen zusammengesetzt. 
Jeweils ein einzelnes Signal pro Übertragungsrichtung 
wird durch weitere Lichtwellenleiter 5 übertragen.  
     Es werden drei Ausführungsbeispiele beschrieben, die 
sich durch die verwendeten wellenlängenselektiven Mittel 
(Filter, Gitter und wellenlängenselektive Faserkoppler) 
unterscheiden.
Patent EP-0208073-A3 (EP)
IPC: F16L37/12
Filed: 1986-04-25
Abstract: Mit der Erfindung wird eine lösbare Steckverbindung, 
bestehend aus Steckerteil (2) mit Verriegelungskeilen (3) 
und Keilschieber (4), vorgeschlagen, die sowohl als 
selbständiges Teil, als auch in Aggregate, Maschi­
nenteile, usw. integriert und eingesetzt werden kann. 
Die Steckverbindung ist sowohl radial, als auch axial 
verriegelt, kraftschlüssig und gegen Verdrehen ge­
sichert. In dem Gehäuseteil (1) sind axial verlaufende 
Nuten (1c) vorgesehen, in die Rippen (2a), am äußeren Umfang 
des Steckerteiles (2) vorgesehen, eingesetzt werden. 
Federnd gelagerte Verriegelungskeile (3) über eine Ab­
schrägung an Betätigungsgabeln (4c) des Keilschiebers (4) ver­
riegeln sich nach Eindrücken des Steckerteiles (2) in das 
Gehäuse (1) in eine am Ende der Nuten vorgesehene Ringnut (1d).
Patent EP-0207284-A3 (EP)
Title: Process for the synchronization of square pulses
IPC: G01D5/244
Filed: 1986-05-26
Abstract: A process and apparatus for improving the resolution of square, subdivided signals by synchronizing the signals with an auxiliary clock signal. The signals are further conditioned by switching logic elements which, in dependence upon adjacent signals in the subdivision order and upon the auxiliary clock signal, only allow the states of the signals to change at predefined times.
Patent EP-0207505-A3 (EP)
IPC: A61P1/00
Filed: 1986-07-02
Abstract: The use of a prenyl ketone compound having the formula 
(I) in which n is 3, 4 or 5 
  
in the preparation of a medicament for the treatment and 
prophylaxis of gastritis is provided.
Patent EP-0214528-A3 (EP)
IPC: C07D401/06
Filed: 1986-08-21
Abstract: Beschrieben wird das (+)-6-Chlor-5,l0-dihydro-5-[(l-methyl-­
4-piperidinyl)-acetyl]-llH-dibenzo[b,e][l,4]-diazepin-ll-on, 
seine Isolierung aus einem Enantiomerengemisch und seine 
Verwendung als Arzneimittel.  
     Die Verbindung zeichnet sich durch eine starke Wirkung gegen 
Ulcera des Magen-Darm-Traktes aus.
Patent EP-0218964-A3 (EP)
Title: Set of containers for different cleaning tablets
IPC: C11D17/04
Filed: 1986-09-25
Abstract: The set has at least two containers with different marking for receiving at least one cleaning tablet each or a certain quantity of granules, concentrate or the like, each container being closed by a lid, which has an apportioning means permitting at least two different throughflow rates. <IMAGE>
Patent EP-0224094-A3 (EP)
IPC: A01N43/56
Filed: 1986-11-07
Abstract: Die Erfindung betrifft 1-Aryl-pyrazole der Formel (I), 
  
in welcher  
X für Cyano oder Nitro steht,  
R für Cyano oder für einen Rest -CO-Y-R¹ steht,  
wobei die Definition von Y und R¹ und Ar der 
Beschreibung zu entnehmen ist,  
mehrere Verfahren zu ihrer Herstellung und ihre Verwen­
dung als Herbizide.
Patent EP-0222414-A3 (EP)
IPC: C07D213/79
Filed: 1986-11-14
Abstract: This invention relates to the novel selenium compounds 
which are useful as an antineoplastic agent. The compounds 
are represented by the general formula (I):  
Se(O) a (R) b (X) c (A) n (Y) m       (I)  
wherein R, X, A and Y represent the groups specified below, a 
represents a number of 0 or 1, b represents a number of 0, 1 
or 2, and (1) when a is 0 and b is also 0, c is 4, n is 1 or 2 and m 
is 0, (2) when a is 1 and b is 0, c is 2, n is 1 or 2 and m is 0 or 1, 
and (3) when b is 1 or 2, c, n and m are all 0;  
(i) when b is 2, R represents (1) a C₄₋₁₀ alkoxy group sub­
stituted with a halogen atom, (2) a lower alkoxyl group substi­
tuted with a halogen atom and a phenyl group, or (3) a cyclo­
alkyloxy group substituted with a halogen atom, and (ii) 
when b is 1, R represents a group represented by the formula 
  
(wherein R₀ is C₂₋₆ alkyl group);  
X represents a halogen atom;  
A represents caffeine, theophylline, N-benzyl­
theophylline, N-benzyltheobromine, 2,2′-biquinoline, 1,6-­
naphthylidine, 1,10-phenanthroline, or a compound repre­
sented by the formula 
  
or 
  
(wherein R₁ and R₂ may be the same or different and repre­
sent a hydrogen atom, a hydroxyl group, a cyano group, a lower 
alkoxycarbonyl group, a phenoxycarbonyl group, an amino 
group (to which a lower alkyl, lower alkylaminocarbonyl, 
lower halogenoalkylaminocarbonyl or lower alkoxycarbonyl 
group may be bonded), a benzoyl group, a loweralkoxyl 
group, a carbamyl group or an allyloxycarbonyl group; R₃ 
represents a C₁₋₁₀ alkyl group or a benzyl group; R₄ and R₅ 
represent independently a hydrogen atom, a halogen atom or 
an alkyl group, or R₄ and R₅ may represent 
  
in com­
bination; R₆ represents a lower alkoxyl group, a phenyl group 
or a phenoxy group; R₇ represents a hydrogen atom, a lower 
alkyl group or a group represented by the formula 
  
(wherein R₉ represents an amino group or a lower alkoxyl 
group); R₁₀ represent a hydrogen atom or a nitro group; and 
one of B and D represents nitrogen and the other represents 
≧C-H or ≧C-OH); and  
Y represents H₂O or an alcohol represented by the for­
mula R₆-OH [wherein R₈ represents a benzyl (which may be 
substituted with a lower alkoxy group) or alkyl group];  
wherein when X is chlorine atom and m is 0, R₁ and R₁₀ 
represent an atom or a group other than hydrogen atom.
Patent EP-0190824-A3 (EP)
IPC: G01J1/02
Filed: 1986-01-15
Abstract: A photometer (21) for use with a microscope having an 
object plane (10), an image plane (19) and an optical axis (17) 
between the planes (10 and 19). The photometer (21) 
includes an optical divider (14) disposed in the optical axis 
(17) between the microscope object and image planes (10 
and 19). A detector (26) together with the divider (14) are 
arranged in a photometer axis (23), and a pin hole occluder 
(24) is arranged in the photometer axis (23) between the 
detector (26) and the divider (14). Illumination means (35) is 
disposed in an illumination axis (37) for illuminating the pin 
hole occluder (24) from behind, a reflective element (42) 
having a reflective surface is provided for imaging the 
illuminated pin hole occluder (24) in the microscope image 
plane (19). The photometer (21) also includes a chopper (49) 
for interrupting periodically the photometer axis (23) and 
means (51) for interrupting periodically the illumination axis 
(37). The chopper (49) and the means (51) for interrupting 
periodically the illumination axis (37) are synchronized such 
that when the photometer axis (23) is not interrupted by the 
chopper (49), the illumination axis (37) is always interrupted.
Patent EP-0225109-A3 (EP)
IPC: A61K38/095
Filed: 1986-11-18
Abstract: Peptides having vasopressin antagonist activity 
are prepared by a peptide synthesizer to insert a N-methyl 
arginine at the 7-position of the structure. 
  
An example 
of this series of compounds is [1-(β-mercapto-β,β-cyclo-­
pentamethylenepropionic acid)-2-(O-ethyl-D-tyrosine) -4-­
valine-7-depresoline-8-N-methylarginine-9-desglycine]-­
vasopressin.
Patent EP-0227391-A3 (EP)
IPC: A61K51/10
Filed: 1986-12-12
Abstract: A method to radio-image parathyroid tissue using radio-­
isotopes which are detectable by scintigraphy employs novel 
monoclonal antibodies or their fragments, which are specific­
ally reactive with parathyroid antigen.
Patent EP-0231628-A3 (EP)
IPC: F23D1/02
Filed: 1986-12-12
Abstract: A burner adapted for use with pulverised coal has 
an annular swirling coal and primary air supply (2) 
located inside a swirling annular secondary air supply 
(3) with a hollow rotationally summetrical flame stabil­
ising body (7) located centrally of the swirling coal/air 
streams. The flame stabilising body can include a ring 
of nozzles (24) on a domed downstream end (8) for egress 
of start-up fuel therefrom.
Patent EP-0218555-A3 (EP)
IPC: G02F1/29
Filed: 1986-10-02
Abstract: In einen Körper mit lichtdurchlässigem, doppelbrechendem 
Material, dessen optische Brechungseigenschaften durch Licht 
veränderbar sind, wird durch Einstrahlen von zwei Schreib-­
Lichtbündeln ein Beugungsgitter erzeugt und an diesem ein 
Lese-Lichtbündel abgebeugt. Durch Ändern der Frequenz oder 
eventuell Einstrahlungsrichtung der Schreib-Lichtbündel oder 
durch Einstrahlen eines Modulations-Lichtbündels können das 
abgebeugte Lese-Lichtbündel in verschiedene Richtungen abge­
lenkt bzw. räumlich moduliert werden. Die Richtungen und 
Polarisationen der eingestrahlten Lichtbündel werden derart 
festgelegt, dass die Beugung anisotrop ist, das eingestrahlte 
sowie das abgebeugte Lese-Lichtbündel verschiedene, lineare 
Polarisationen haben und sich im Innern des Körpers mit 
verschiedenen Wellenzahlen (k i , k d ) ausbreiten. Dies ermög­
licht, beim Ändern der Richtung oder beim Modulieren des 
abgebeugten Lese-Lichtbündels in einfacher Weise ohne die 
Richtungen des eingestrahlten Lese-Lichtbündels und des Git­
tervektors ( 
 g ) bezüglich einander zu ändern, die Abweichung 
von der Bragg-Bedingung gering zu halten und damit einen 
grossen und von der Ablenkungsrichtung bzw. vom Modulationszu­
stand relativ unabhängigen Beugungswirkungsgrad zu erzielen.
Patent EP-0237757-A3 (EP)
IPC: C08L83/04
Filed: 1987-02-06
Abstract: In den neuen durch Strahlung zu Elastomeren vernetzbare Mas­
sen auf Grundlage von (a) Organopolysiloxan mit Triorganosi­
loxaneinheiten der Formel   
 
H₂C=CHCXOR¹SiR₂O 1/2 ,   
 
worin R gleiche oder verschiedene, einwertige Kohlenwasser­
stoffreste, die halogeniert sein können, R¹ gleiche oder ver­
schiedene zweiwertige Kohlenwasserstoffreste, die halogeniert 
sein können, und X Sauerstoff oder Schwefel bedeutet, während 
die anderen Siloxaneinheiten als diese Triorganosiloxaneinhei­
ten mindestens zu 80 % ihrer Anzahl Diorganosiloxaneinheiten 
sind, deren SiC-gebundenen organischen Reste beide einwertige 
Kohlenwasserstoffreste sind, die halogeniert sein können, (b) 
Füllstoff mit einer Spezifischen Oberfläche von mindestens 
50 m²/g und gegebenenfalls (c) Photoinitiator, enthält Organo­
polysiloxan (a) zusätzlich zu den vorstehend genannten Siloxan­
einheiten auch Siloxaneinheiten der Formel   
 
HSR¹SiRO,   
 
worin R und R¹ jeweils die oben dafür angegebene Bedeutung 
haben.
Patent EP-0272632-A3 (EP)
Title: Flow control manifold for cross-flow membrane system
IPC: C02F1/44
Filed: 1987-12-17
Abstract: A cross flow membrane system for separating feed water into a concentrate stream and a permeate stream which includes a cross-flow membrane module (42, 44), a pump (40) for pressurizing feed water for supply to the module (42, 44) and a flow control manifold block (21) having a permeate bore (54), a concentrate bore (71) and a concentrate orifice (85) for controlling the flow of concentrate from the system and the operating pressure within the cross-flow membrane module (42, 44). The manifold block (21) simplifies the manufacture, operation and maintenance of the system and allows elimination of many of the tubes, hoses and valves which are commonly required in prior art systems.
Patent EP-0240451-A3 (EP)
IPC: C30B21/02
Filed: 1987-03-30
Abstract: The anisotropy typically observed in single 
crystal nickel base superalloys is reduced by 
intentionally adding certain small amounts of carbon, 
boron, zirconium or hafnium, either individually or in 
combination, to the alloy composition.
Patent EP-0248756-A3 (EP)
IPC: H02G1/12
Filed: 1987-03-30
Abstract: Apparatus for stripping the insulation from the 
end of an electrical conductor (7), comprises a pair of 
clamping jaws (21,22) for clamping the electrical con­
ductor (7) therebetween; a pair of cutting blades (23, 
24) mounted to one side of the clamping jaws (21,22) for 
cutting the insulation while the conductor (7) is clamped 
by the clamping jaws (21,22); a drive for driving the 
clamping jaws (21,22) and cutting blades (23,24); and 
displacing means driven by the drive for effecting rela­
tive movement between the clamping jaws (21,22) and 
cutting blades (23,24) in order to strip the cut in­
sulation from the ends of the conductor (7). The pair of 
cutting blades (23,24) are carried by a support pivotably 
mounted with respect to the clamping jaws (21,22). The 
displacing means pivots the cutting blades support away 
from the clamping jaws (21,22) to strip the cut insula­
tion from the end of the conductor (7).
Patent EP-0285031-A3 (EP)
Title: Improved separator for cell type fiter cartridges
IPC: B01D33/21
Filed: 1988-03-25
Abstract: Cell type filter cartridge (10) in which the individual cells (20,30,40) contain a separator disc (50) having stiffening members (70,72) formed at the central aperture of the cell and connected to a plurality of the separating ribs (52,68) in spaced relation to each other. The coaction of the two or more discs with the separator ribs provides for a rigid, box-like structure of the ribs to impart a substantial cantilevered strength to the ribs. Additionally, at least one of the stiffening discs is positioned at or near the ends of the separator ribs to act as a load-bearing surface to prevent media intrusion of the filtering medium (42,44) and thereby maintain the area of the flow path of the filtered liquid as it passes through the central aperture of the disc.
Patent EP-0292792-A3 (EP)
Title: Hydrometallurgical process for producing finely divided iron based powders
IPC: B22F9/22
Filed: 1988-05-11
Abstract: A process for producing finely divided spherical iron group based metallic powders comprises forming an aqueous solution containing a source of the appropriate metal sources in a mineral acid, forming a reducible iron group based material from the solution, reducing the material to iron group based metal powder particles, subjecting the metal particles to a high temperature zone to melt a portion of the particles and to form droplets and cooling the droplets to form an essential spherical iron group based metallic powders.
Patent EP-0300308-A3 (EP)
IPC: H01H33/66
Filed: 1988-07-11
Abstract: Die Kontaktanordnung für einen Vakuum-Leistungsschalter 
weist mindestens einen Schaltkontakt (21) auf, der aus 
einer als kontaktgebendes Teil ausgebildeten Hauptelek­
trode und einer die Hauptelektrode umgebenden Lichtbogen­
elektrode besteht. Letztere stellt einen Rotationskörper 
mit relativ kleinem Querschnitt dar, der vorzugsweise als 
Rechteck ausgebildet und an einer Stelle durch einen in 
tangentialer Richtung geführten Schlitz (8) aufgetrennt ist. 
Die Lichtbogenelektrode (6) ist beispielsweise auf einem Ab­
satz (7) des Kontaktkörpers (1) so befestigt, daß ihr äuße­
res Ende mit dem Absatz (7) leitend verbunden ist, während 
der Rest der Lichtbogenelektrode (6) auf einem den Ab­
satz (7) von der Lichtbogenelektrode (6) trennenden Iso­
lierstoffzwischenlage (9) befestigt ist. Bei dieser Aus­
führung ist zwischen der Lichtbogenelektrode (6) und dem 
Kontaktkörper (1) ein nicht unterbrochener Spalt (5) vor­
gesehen.  
     Der Kontaktkörper (1) ist durch radial verlaufende 
Schlitze (2) so unterteilt, daß ein auf der Kontaktfläche 
(20) oder dem Kontaktring (4) entstehender Lichtbogen (L) 
eines Kurzschlußstromes infolge elektromagnetischer Kräfte 
mit seinem Fußpunkt auf die Lichtbogenelektrode (6) 
 
 
gezwungen wird und dort auf der umlaufenden, nur durch 
einen Schlitz (8) unterbrochenen Bahn ideale Laufbedin­
gungen vorfindet. Die Lichtbogenelektrode kann auch aus 
mehreren spiralförmig angeordneten Windungen bestehen, 
wodurch eine besonders lange ununterbrochene Lauffläche 
für den Schaltlichtbogen entsteht.  
     Die Kontaktanordnung stellt eine Verbesserung zur Unter­
brechung kontrahierter, stromstarker Lichtbögen in Va­
kuumschaltern dar.
Patent EP-0310108-A3 (EP)
IPC: H01L21/768
Filed: 1988-09-30
Abstract: A semiconductor device and a method of 
manufacturing the same wherein the first and second 
wirings (12, 14) with an interlayer insulating film 
(13) interposed therebetween are connected through a 
contact hole (15) formed in the interlayer insulating 
film (13). In the semiconductor device, the first and 
second wirings (12, 14) are connected via a low 
resistive, conductive metal layer (18) obtained by 
reducing a highly resistive oxide layer (16) with a 
highly oxidizing metal (17), the highly resistive oxide 
layer (16) being exposed within the contact hole (15) 
on the surface of the first wiring (12). In the method 
of manufactzuring a semiconductor device, a contact 
hole (15) is opened in the interlayer insulation (13) 
on the first wiring (12), a highly oxidizing metal (17) 
is deposited on the highly resistive oxide layer (16) 
on the surface of the hirst wiring (12) within the 
contact hole (15), and the highly resistive oxide layer 
(16) is reduced with the highly oxidizing metal (17) to 
change the highly resistive oyide layer to a low 
resistive, conductive metal layer (18). The second 
wiring (14) is connected to the first wiring (12) via 
the conductive metal layer. The reduction may be 
carried out before or after depositing the second 
wiring, or at the time when the highly oxidizing metal 
is deposited.
Patent EP-0312087-A3 (EP)
Title: Amides of bis-aldonic acids and a method for their preparation
IPC: C07H15/04
Filed: 1988-10-14
Abstract: The aldonic acids on which the amides are based can be glycosidically linked in position 3, 4 or 6 to a galactopyranosyl, mannopyranosyl, glucopyranosyl or oligopyranosyl radical. The products are starting materials for the preparation of the corresponding polysulphates.
Patent EP-0311148-A3 (EP)
IPC: F16P1/06
Filed: 1986-02-05
Abstract: The apparatus has an infra-red sensor (88) which 
by means of a rotary scanning head (74) is provided in 
continuously repeated cycles with an overall field of 
view encompassing an area under surveillance. 
Included in an optical system (90 to 94) associated 
with the scanning head is an anamorphic lens (90) by 
which to enlarge, with a ratio of its wide and narrow 
angles of view of up to as much as 220:1, the field of 
view in a direction perpendicular to the plane of 
rotation of the scanning head.
Patent EP-0279582-A3 (EP)
Title: Dna sequences to target proteins to the mammary gland for efficient secretion
IPC: A01K67/027
Filed: 1988-02-10
Abstract: Described is a method of targeting specific genes to 
the mammary gland which results in the efficient synthesis 
and secretion of biologically important molecules. 
Further, there is described as a composition of matter, a 
transgenic mammal having the ability to reproduce itself 
and being suitable for the secretion of biologically 
active agents into its milk. Additionally there is 
disclosed as a composition of matter, recombinant DNA gene 
complexes designed to integrate into a mammalian genome 
and to synthesize and secrete biological active agents 
into the milk. Furthermore methods of producing and using 
altered milk are disclosed.
Patent EP-0283326-A3 (EP)
Title: Liquid crystal compounds with 4-(optically active alkyl)-3-cyanophenyl groups
IPC: C09K19/34
Filed: 1988-03-21
Abstract: Optically active liquid crystal compounds and chiral liquid crystal compositions containing them, the compounds having the formula: <CHEM> in which R<1> is C2-C18 alkyl group; R<2> is a C1-C12 alkyl or alkoxy group, a cyano group or a hydrogen or halogen atom; A is a group -COO- or -OCO-; B and C are each a single bond or a group <CHEM> (in which X is a hydrogen or halogen atom or a cyano group); and  l , m and n are each 0 or 1.